Home / 7,120.93-10,683.68-3,423.43

Finding the Fourth Proportional to 7,120.93, 10,683.68 and 3,423.43

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Solution

The fourth proportional to 7,120.93, 10,683.68 and 3,423.43 is: 5,136.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.93 : 10,683.68 = 3,423.43 : x
  2. Step 2: Convert to fraction form
    7,120.93/10,683.68 = 3,423.43/x
  3. Step 3: Cross multiply
    7,120.93x = 10,683.68 × 3,423.43
  4. Step 4: Simplify right side
    7,120.93x = 36,574,830.62
  5. Step 5: Solve for x
    x = 36,574,830.62/7,120.93
  6. Step 6: Final answer
    x = 5,136.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.